Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure

Oskari Heikkilä; Jani Oksanen; Jukka Tulkki

doi:10.1117/12.873551

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21 February 2011 Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure

Oskari Heikkilä, Jani Oksanen, Jukka Tulkki

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Proceedings Volume 7933, Physics and Simulation of Optoelectronic Devices XIX; 793315 (2011) https://doi.org/10.1117/12.873551
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

We present a transport equation model for the light emission and transport in light-emitting diodes. Using the model, we compare the brightness and quantum efficiency of LEDs with light extraction through a smooth, light scattering or perfectly transparent planar surface. We show that surface roughened LEDs can perform almost ideally and that the thickness of the active region in LEDs has a large effect on the photon extraction and the overall efficiency.

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Oskari Heikkilä, Jani Oksanen, and Jukka Tulkki "Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure", Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793315 (21 February 2011); https://doi.org/10.1117/12.873551

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